金剛般若經依天親菩薩論贊略釋秦本義記卷上 1.81

1.81

經。須陀洹名為入流而無所入不入色聲香味觸法是名須陀洹　第四釋也。名為入流者。義如上解。而無所入者。以無我故。而不見有我。是入流者不入色聲香等者。以無我故不見六塵境界。以為我所故言不入也。

[Sūtra:] "'A srotāpanna is named an "enterer of the stream," yet there is nothing entered; not entering forms, sounds, scents, tastes, tangible objects, or dharmas—this is named a srotāpanna.'"

This is the fourth [part], the explanation. Being "named an enterer of the stream" is explained in meaning as above. "Yet there is nothing entered" means that because there is no self, one does not see that there is a self who is the stream-enterer. "Not entering forms, sounds, scents, and so forth" means that because there is no self, one does not see the sensory spheres of the six dusts as being what belongs to self; hence it is said "not entering."